IM
IronMonkey Threat Research

CVE-2020-7538 HIGH

Published: 2020-11-19 | Last Modified: 2024-11-21 | Status: Modified

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus.

Additional Descriptions (1)

CWE-754: Se presenta una vulnerabilidad Comprobación Inapropiada de Condiciones Inusuales o Excepcionales en el Simulador de PLC en EcoStruxureª Control Expert (ahora Unity Pro) (todas las versiones) que podría causar un bloqueo del simulador de PLC presente en el software EcoStruxureª Control Expert cuando recibe una petición especialmente diseñada mediante Modbus

CVSS Metrics

Base Score: 7.5 (HIGH)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 3.6

Base Score: 5.0 (MEDIUM)

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access VectorNETWORK
Access ComplexityLOW
AuthenticationNONE
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactPARTIAL

Source: [email protected]

Type: Primary

Exploitability Score: 10.0

Impact Score: 2.9

Weaknesses

Source Type Description
[email protected] Secondary
en CWE-754

Affected Products

Vendor Product Version Update Type
schneider-electric ecostruxure_control_expert * <built-in method update of dict object at 0x7e613c3ab400> Application

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:*

References

Notification
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